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If you have been sexually active (and not on any regular form of birth control measures), then, the symptoms could indicate pregnancy possibility. Urine pregnancy test kits rarely show you false positive results, hence, if you have got positive results, chances of pregnancy are possible. Look out for development of any other new symptoms if pregnancy is suspected. Wait and watch for your periods. If periods do not start within 10 days of expected period dates, or if you get abnormal periods, or if you suspect chances of pregnancy, consider visiting your doctor/gynecologist at the earliest for thorough examination (to confirm pregnancy related changes/signs in body) and blood/serum HCG level test (to confirm/rule out pregnancy accurately). Be in regular monitoring and follow-up with your treating doctor/gynecologist and report any new/abnormal symptoms immediately. Drink plenty of water. Take adequate rest. Maintain healthy diet.
Take care.